Hollow concrete wall block construction



"L M. McCURRY. HOLLOW CONCRETE WALL BLOCK CONSTRUCTION.

APPLICATION FILED DEC.8| 19|?.

1,417,399, X Patented May 23, 1922.

JMCQTU w aan o JAMES M. MCCURRY, O` SAN LUIS OBSPO, CALIFORNIA.

HOLLOW CONCRETE WALL BLOCK` CONSTRUCTION.

Application led December 8,1917.

T 0 all /w/lom t may cof/tecra:

Beit lrnown that LJAMns M. MGCURRY, a citizen of 'the United "States, residing at San Luis Obispo, in the county of San Luis Obispo and State of California, have invented new and useful Improvements in Hollow Concrete Wall Block Construction,

of which the following is a specification. y

rthis invention relates to building construction and aims to provide walls constructed of hollow concrete blocks and so formed and arranged as to provide inner and outer chambers.

An object of the invention is to provide a wall constructed of blocks of the above character, in which the outer chambers are con tinuous, the outer chamber being filled with poured concrete to form a binder for the blocks and to provide a solid continuous outer wall from the foundation to the roof and entirely surrounding the building, vthe effect being a poured outer wall and an inner hollow wall. This provides for stability and leaves the desired space for air and the prevention of moisture reaching the inner wall.

The invention also contemplates a wall constructed of blocks so formed as to provide for horizontal and vertical reinforcing rods which will be embodied in the poured concrete and further strengthen the wall.

Further objects and advantages of the invention will appear when the following description is Vread in connection with the accompanying drawings in which:

Figure l is a perspective view of a portion of a wall constructed in accordance with the present invention.

-Figure 2 is the top plan view ofv the con-` struction illustrated in Figure 1.

Figure 3 is a detailed sectional view taken on the line 3 3 of Figure 2.

Figure 4- is a detailed perspective view of one of the blocks.

Referring to the drawings in detail, wherein like characters of reference denote corresponding parts, thenumeral l indicates a portion of the wall of a building. The wall includes a plurality of blocks Q which are provided with relatively narrow ends 3 and are provided with a central wall or partition 4 which divides the blocks vertically and longitudinally to provide inner and outer chambers 5 and 6 respectively. The ends of the chamber 5 are closed by means of end walls 7 while an extension 8, projecting upwardly from the upper edge Specicationof Letters Patent.

Patented May 2:3, MM2,

Serial No. 206,338.

of each block intermediate its ends, is provided with a longitudinal slot 9 which is the saine width as and communicates with the chamber 5. A longitudinally extending slot l0 is formed in the extension and communi.- cates with the chamber 6, while located in the slot is a bar 11 which is positioned trans versely of the outer chamber 6 and intermediate the open ends thereof.

ln the formation of a wall, the blocks are arranged in superposed and staggered relation, the intermediate extension of one block being disposed between the reduced end portions of the adjacent blocks. Thus it will be seen there is provided a continuous air space which extends 'vertically from the bottom to the top of the wall and thereby permits the air to have circulationvin a tor tuous manner throughout the entire length of the wall.

Arranged horizontally within the outer chamber are reinforcing rods 1Q which may be of any desired material. These rods are disposed above the end walls and below the intermediate bars so that the said rods will be held in position. To further strengthen the wall, the outer chamber is filled with concrete as shown at 13, which forms a solid continuous wall from the bottom to the top thereof. The blocks serve as substitutes for the usual wooden forms or molds, and remain in position in the complete structure. The inner chamber forms an air space eX- tending entirely throughout the wall and prevents moisture from reaching the inner surface of the wall, so as not to destroy or mar any `finish placed thereon.

It is believed that from the foregoing description, when read in connection with the accompanyingdrawings, the construction and advantages of the invention will be ap parent. The right is reserved to make such changes in the form and proportion thereof as will fall within the scope of the appended claims.

Having described the invention what is claimed is:

l. A hollow concrete wall construction including a plurality of separate interlocking hollow blocks arranged in vertical staggered relation, each of said blocks including relatively narrow end portions and an extended intermediate portion, a central wall dividing the blocks vertically and longitudinally to form an inner chamber, end walls connecting oneof the side wallswith the partition yhollow blocks ar anged in vertical staggered relationj eue-h of Said blocks ineludingrelw tively narrow end port-lons and an extended intermediate portion, a central Wall dividing Leif/,eee

the blocks vertically and longitudinally to' `lorin an inner chamber, end Walls eonneet `ing` one of the side Walls With the partition to forni said inner chamber, which is Closed at both ends, and an Aouter chamber open at each end and a bar positioned transversely of the outer chamber intermediate its ends, Suid outer Chamber being filled With oonorete, Suid Concrete being reinforced.

lfn testimony whereof l affix my signature.

J M. MCCURRY. 

